Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
extracellular | - |
Aspergillus niger | - |
- |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
90000 | - |
x * 90000, SDS-PAGE, x * 180000, SDS-PAGE | Aspergillus niger |
180000 | - |
x * 90000, SDS-PAGE, x * 180000, SDS-PAGE | Aspergillus niger |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
IRDUAM collection strain No. Aa20 | - |
Purification (Comment) | Organism |
---|---|
to homogeneity from culture supernatant | Aspergillus niger |
Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
---|---|---|---|
additional information | - |
- |
Aspergillus niger |
0.18 | - |
purified enzyme, substrate catechin gallate | Aspergillus niger |
0.43 | - |
purified enzyme, substrate epicatechin gallate | Aspergillus niger |
0.64 | - |
purified enzyme, substrate epigallocatechin gallate | Aspergillus niger |
0.84 | - |
purified enzyme, substrate tannic acid | Aspergillus niger |
0.87 | - |
purified enzyme, substrate gallic acid methyl ester | Aspergillus niger |
1.13 | - |
purified enzyme, substrate gallocatechin gallate | Aspergillus niger |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
catechin gallate + H2O | - |
Aspergillus niger | gallic acid + catechin | - |
? | |
cellobiose + H2O | beta-glucosidase activity of the enzyme, only observed in absence of tannic acid | Aspergillus niger | 2 D-glucose | - |
? | |
epicatechin gallate + H2O | - |
Aspergillus niger | gallic acid + epicatechin | - |
? | |
epigallocatechin gallate + H2O | - |
Aspergillus niger | gallic acid + epigallocatechin | - |
? | |
gallic acid methyl ester + H2O | - |
Aspergillus niger | gallic acid + methanol | - |
? | |
gallocatechin gallate + H2O | best substrate | Aspergillus niger | gallic acid + gallocatechin | - |
? | |
additional information | the enzyme removes gallic acid non-specifically from both condensed and hydrolysable tannins | Aspergillus niger | ? | - |
? | |
tannic acid + H2O | - |
Aspergillus niger | 10 gallate + D-glucose | - |
? |
Subunits | Comment | Organism |
---|---|---|
? | x * 90000, SDS-PAGE, x * 180000, SDS-PAGE | Aspergillus niger |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
60 | 70 | - |
Aspergillus niger |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | 90 | markedly reduced activity above 70°C | Aspergillus niger |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
6 | - |
- |
Aspergillus niger |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
3.5 | 7 | - |
Aspergillus niger |
Organism | Comment | pI Value Maximum | pI Value |
---|---|---|---|
Aspergillus niger | isoelectric focusing | - |
3.8 |